Is multi-dynamic architecture a binary trap?

During the past months, I have had many discussions with fellow architects about the topic of multi-dynamic architecture.

Multi-dynamic architecture recognizes that within one organization more than one architecture regime may be required. Simply because the dynamics within an organization are too diverse to successfully apply one and the same approach to architecture governance, development, application and content to all parts of the organization.

Instead, the idea is to identify sub-systems within the organization, describe these in terms of the dimensions variability, development approach, governance, reach, data and reliability, categorize them according to the similarity in these dimensions and define an architecture regime for each of these clusters. For some organizations you may end up with only one architecture regime, for some there may be two, while for others there may be three or even four.